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Amiga Custom Chip Paula 8364.jpg
Developer: MOS Technology
Released: 1985
Type: Chip

1.) PCM
2.) PCM
3.) PCM
4.) PCM

The MOS Technology 8364 also known as Paula is a chip which includes logic for audio playback, floppy disk drive control and serial port input/output. It was used in all models of the Commodore Amiga, the Commodore CDTV and the Amiga CD32.

A 8364 contains the following elements:

  • Digital to Analog converters: four 8-bit DMA-driven audio channels grouped into a left and right audio output. Each of the channels have independent frequency and a 6-bit volume control.
  • Disk control: a disk controller to read/write data from/to a floppy disk.
  • UART control: a serial port controller to read/write data from/to a serial port.
  • Pot control: four general purpose I/O ports with counters for Analog to Digital conversion which can be used for reading out analog joysticks.
  • Interrupt control: handles internal and external interrupts
  • DMA request logic: requests DMA cycles from the system DMA controller for the audio and disk controllers